From previous games I've played here hosted by Aeria, they were OK with remapping / keymods as long as (1) you were still actively playing the game (i.e. no timed macros / auto-playing while away from game) and (2) the re-map acted as though you pushed the button normally (i.e. single button push = one action / skill as normal, not chaining skills / actions to a single button)
Always good to get the opinion / ruling of the GMs running this particular game though.